CCNA
Presentation Layer (Layer 6) tutorials
-
It performs data Presentation, Compression and Encryption so that it is
recognizable by the receiver.
-
Layer 6 presents data to the Application layer and acts as a data format
translator.
-
Format translation is necessary to ensure that the data can be read by applications.
-
Layer 6 also handles the structuring of data and negotiating data transfer
syntax to Layer 7.
-
Processes involved include data encryption, decryption, compression, and
decompression.
-
The Presentation layer is the only layer that can actually change data.
-
Layer 6 protocols include the following:
-
Joint Photographic Experts Group (JPEG)
-
American Standard Code for Information Interchange
(ASCII)
-
Extended Binary Coded Decimal Interchange Code
(EBCDIC)
-
Tagged Image File Format (TIFF)
-
Graphic Image File (GIF)
-
Picture (PICT)
-
Moving Picture Experts Group (MPEG)
-
Musical Instrument Digital Interface (MIDI)
-
QuickTime
-
Rich Text Format (RTF)